Phillips 66 Lubricants Director of Product Management & Technical Services, Tony Negri, and Technical Coordinator, Teddy Lazarus, tear down a 2015 Ram 1500 EcoDiesel. The engine used Guardol XT Full Synthetic 5W-40, accumulating many miles in Phoenix, Arizona for a sales representative. Watch as they review the parts and performance of the engine oil. If you operate a fleet and want more information, visit us at GoGuardol.com. #GuardolGuardsThemAll #GoGuardol